Herbert No. 4 Senior Preoptive Capstan Lathe: Parts Manual as Exploded Component Drawings (full 180-page edition). Includes a copy of the maker's detailed 12-page Sales, Technical Specification & Accessories Catalogue.
Herbert 4 Senior Capstan Lathe with Dial-change Headstock - identifiable by a 4-spoke, capstan-style wheel on the face of the headstock. Two editions of the Operator's Instruction, Maintenance and Dismantling Manual.